Q87182738

Thing by_draconis_variable Q87182738

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Q87182738

Summary

Q87182738 is a BY Draconis variable^[1].

Key Facts

Q87182738's instance of is recorded as BY Draconis variable^[2].
Q87182738's constellation is recorded as Taurus^[3].
Q87182738's spectral class is recorded as K5V^[4].
Q87182738's catalog code is recorded as 2MASS J04241691+1800107^[5].
Q87182738's catalog code is recorded as Cl* Melotte 25 OS 271^[6].
Q87182738's catalog code is recorded as Cl* Melotte 25 VA 310^[7].
Q87182738's catalog code is recorded as Cl* Melotte 25 HAN 312^[8].
Q87182738's catalog code is recorded as Cl* Melotte 25 PELS 39^[9].
Q87182738's catalog code is recorded as Cl* Melotte 25 REID 198^[10].
Q87182738's catalog code is recorded as BD+17 715^[11].
Q87182738's catalog code is recorded as GCRV 2554^[12].
Q87182738's catalog code is recorded as GEN# +5.20250174^[13].
Q87182738's catalog code is recorded as GEN# +5.20251310^[14].
Q87182738's catalog code is recorded as GSC 01269-01212^[15].
Q87182738's catalog code is recorded as HD 285720^[16].
Q87182738's catalog code is recorded as HG 7-196^[17].
Q87182738's catalog code is recorded as HIC 20563^[18].
Q87182738's catalog code is recorded as HIP 20563^[19].
Q87182738's catalog code is recorded as JP11 51^[20].
Q87182738's catalog code is recorded as TYC 1269-1212-1^[21].
Q87182738's catalog code is recorded as UBV 21343^[22].
Q87182738's catalog code is recorded as UBV M 41381^[23].
Q87182738's catalog code is recorded as Cl Melotte 25 174^[24].
Q87182738's catalog code is recorded as PLX 972.01^[25].
Q87182738's catalog code is recorded as UCAC4 541-009090^[26].

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Quick Facts

Instance of BY Draconis variable

Properties

Apparent magnitude unit: 1, amount: +8.154, unit: 1, amount: +7.636, unit: 1, amount: +7.524, unit: 1, amount: +9.966, unit: 1, amount: +11.035, unit: 1, amount: +9.364, unit: 1, amount: +8.864, unit: 1, amount: +10.77, unit: 1, amount: +9.92, unit: 1, amount: +9.31, unit: 1, amount: +9.6451

Catalog code 2MASS J04241691+1800107, Cl* Melotte 25 OS 271, Cl* Melotte 25 VA 310, Cl* Melotte 25 HAN 312, Cl* Melotte 25 PELS 39, Cl* Melotte 25 REID 198, BD+17 715, GCRV 2554, GEN# +5.20250174, GEN# +5.20251310, GSC 01269-01212, HD 285720, HG 7-196, HIC 20563, HIP 20563, JP11 51, TYC 1269-1212-1, UBV 21343, UBV M 41381, Cl Melotte 25 174, PLX 972.01, UCAC4 541-009090, EPIC 210674406, [RSP2011] 288, Gaia DR1 3314079503847287424, uvby98 520250174, WEB 3937, Gaia DR2 3314079508140198528, V990 Tau

Constellation Taurus

Declination unit: www.wikidata.org, amount: +18.00292104361620

Declination component of proper motion unit: www.wikidata.org, amount: -30.796

Distance from earth unit: www.wikidata.org, amount: +46.7215

Effective temperature unit: www.wikidata.org, amount: +4743

Epoch J2000.0

Imported from wholeness_audit_2026-05-02_v2

Metallicity unit: 1, amount: +0.18

Parallax unit: www.wikidata.org, amount: +21.428

Radial velocity unit: www.wikidata.org, amount: +39.44

Right ascension unit: www.wikidata.org, amount: +66.07058230142360

Right ascension component of proper motion unit: www.wikidata.org, amount: +110.916

Spectral class K5V

Stellar rotational velocity unit: www.wikidata.org, amount: +3.1

Surface gravity unit: www.wikidata.org, amount: +4800

Type of variable star rotating variable star

External References (2)

Gaia id 3314079508140198528

Simbad id V* V990 Tau

🏷️ Also known as

ru V990 Тельца

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

[2] ↑ Q87182738 — instance of (P31): BY Draconis variable. SIMBAD. wikidata.org.
[3] ↑ Q87182738 — constellation (P59): Taurus. wikidata.org.
[4] ↑ Q87182738 — spectral class (P215): K5V. A technique to derive improved proper motions for Kepler Objects of Interest. wikidata.org.
[5] ↑ Q87182738 — catalog code (P528): 2MASS J04241691+1800107. SIMBAD. wikidata.org.
[6] ↑ Q87182738 — catalog code (P528): Cl* Melotte 25 OS 271. SIMBAD. wikidata.org.
[7] ↑ Q87182738 — catalog code (P528): Cl* Melotte 25 VA 310. SIMBAD. wikidata.org.
[8] ↑ Q87182738 — catalog code (P528): Cl* Melotte 25 HAN 312. SIMBAD. wikidata.org.
[9] ↑ Q87182738 — catalog code (P528): Cl* Melotte 25 PELS 39. SIMBAD. wikidata.org.
[10] ↑ Q87182738 — catalog code (P528): Cl* Melotte 25 REID 198. SIMBAD. wikidata.org.
[11] ↑ Q87182738 — catalog code (P528): BD+17 715. SIMBAD. wikidata.org.
[12] ↑ Q87182738 — catalog code (P528): GCRV 2554. SIMBAD. wikidata.org.
[13] ↑ Q87182738 — catalog code (P528): GEN# +5.20250174. SIMBAD. wikidata.org.
[14] ↑ Q87182738 — catalog code (P528): GEN# +5.20251310. SIMBAD. wikidata.org.
[15] ↑ Q87182738 — catalog code (P528): GSC 01269-01212. SIMBAD. wikidata.org.
[16] ↑ Q87182738 — catalog code (P528): HD 285720. SIMBAD. wikidata.org.
[17] ↑ Q87182738 — catalog code (P528): HG 7-196. SIMBAD. wikidata.org.
[18] ↑ Q87182738 — catalog code (P528): HIC 20563. SIMBAD. wikidata.org.
[19] ↑ Q87182738 — catalog code (P528): HIP 20563. SIMBAD. wikidata.org.
[20] ↑ Q87182738 — catalog code (P528): JP11 51. SIMBAD. wikidata.org.
[21] ↑ Q87182738 — catalog code (P528): TYC 1269-1212-1. SIMBAD. wikidata.org.
[22] ↑ Q87182738 — catalog code (P528): UBV 21343. SIMBAD. wikidata.org.
[23] ↑ Q87182738 — catalog code (P528): UBV M 41381. SIMBAD. wikidata.org.
[24] ↑ Q87182738 — catalog code (P528): Cl Melotte 25 174. SIMBAD. wikidata.org.
[25] ↑ Q87182738 — catalog code (P528): PLX 972.01. SIMBAD. wikidata.org.
[26] ↑ Q87182738 — catalog code (P528): UCAC4 541-009090. SIMBAD. wikidata.org.

Class ancestry

[1] ↑ Q87182738 is an instance of BY Draconis variable (Q797219) [P31, primary]. Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Q87182738. Retrieved May 7, 2026, from https://4ort.xyz/entity/q87182738

MLA “Q87182738.” 4ort.xyz Knowledge Graph, 4ort.xyz, 7 May. 2026, https://4ort.xyz/entity/q87182738.

BibTeX

@misc{4ortxyz_q87182738_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Q87182738}}, year = {2026}, url = {https://4ort.xyz/entity/q87182738}, note = {Accessed: 2026-05-07}}

LLM prompt

According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Q87182738 — https://4ort.xyz/entity/q87182738 (retrieved 2026-05-07)

Canonical URL: https://4ort.xyz/entity/q87182738 · Last refreshed: May 7, 2026